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Toward the Accurate Coverage of Aspheric Surfaces Using Two-Dimensional Scanning Paths for Minimizing Regular Errors

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Abstract:

This paper describes a two-dimensional tool-path planning model for minimizing the regularly distributed errors or mid-frequency errors during computer controlled optical surfacing (CCOS) by optimally connecting different tool-path segments. The model was established based on a neuro-fuzzy algorithm, a path neighborhood function which is defined as a victorious output element calculated in a self-organization way, then, the optimum material removal function with a modified weight was derived. The material removal function was studied theoretically and the results of simulation present a Gaussian distribution feature. Discrete removal points and optimized tool-path grid were simulated. Finally, an experiment involving a parabolic mirror was performed for residual error removal and the two-dimensional tool-path planning algorithm was found to be valid.

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Periodical:

Key Engineering Materials (Volumes 364-366)

Pages:

64-68

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.364-366.64

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Online since:

December 2007

Authors:

Hao Bo Cheng, Jing Feng Zhi, Yong Tian Wang, Jing Bian

Keywords:

Dwell Time, Polishing, Removal Function, Residual Error, Tool Path

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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